期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
基于位阻效应调控的D-A-π A型三苯胺敏化染料的设计与性能研究
- （河北师范大学 化学与材料科学学院，河北省有机功能分子重点实验室，河北 石家庄 050024）
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DOI：10.13763/j.cnki.jhebnu.nse.202303014
Design and Properties of D-A-π A Triphenylamine Sensitized Dyes Based on Steric Effect
摘要/Abstract
摘要：
纯有机敏化染料分子结构，特别是染料分子的平面性变化能够有效调控分子的多种性能.将具有不同位阻效应的甲氧基和羟基基团分别引入到染料分子中，合成了具有D-A-π A结构的敏化染料CS-75和CS-76，并对其结构和性能进行了深入研究.结果表明，具有较小位阻效应基团的CS-76的平面性更强，其产生较强的H聚集导致荧光寿命和电子注入效率均低于CS-75，基于CS-76的电池器件的光电转换效率也较低.这项工作为纯有机敏化染料的分子设计提供参考.
Abstract：
The properties of pure organic sensitized dyes can be regulated by the molecular struc-tures,especially the change of molecular planarity. Sensitized dyes CS-75 and CS-76 with D-A-π A structure were synthesized by introducing methoxy and hydroxyl groups with different steric effects into dye molecules. And their structures and properties were investigated deeply. The results showed that CS-76 with smaller steric effect groups showed stronger planarity,and its strong Haggregation resulted in lower fluorescence lifetime and electron injection efficiency than CS-75. The photoelectric conversion efficient of cell devices based on CS-76 was also lower. This work provides a reference for the molecular design of pure organic sensitized dyes.
关键词
Key words：
organic dye
;
molecular design
;
triphenylamine
;
steric effect
;
planarity
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